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Finding the Fourth Proportional to 66,094.62, 91,210.59 and 35,879.91

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Solution

The fourth proportional to 66,094.62, 91,210.59 and 35,879.91 is: 49,514.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,094.62 : 91,210.59 = 35,879.91 : x
  2. Step 2: Convert to fraction form
    66,094.62/91,210.59 = 35,879.91/x
  3. Step 3: Cross multiply
    66,094.62x = 91,210.59 × 35,879.91
  4. Step 4: Simplify right side
    66,094.62x = 3,272,627,760.25
  5. Step 5: Solve for x
    x = 3,272,627,760.25/66,094.62
  6. Step 6: Final answer
    x = 49,514.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.